Anti-friction bearing



' (No Model.) i J. M. KELEHER. v

ANTI FRICTION BEARING.

No. 317,652. a Patented May 12, 1885.

witnesses: ,Inventor.

67.74% A @MZV Prion.

JOHN M. KELEHER, or NEWARK, oHio.

ANTI-FRICTION BEARlNG.

SPECIFICATION forming part of Letters Patent No. 317,652, dated May 12, 1885.

, Applicaiion filed March 9, 1885. (No model.)

ark, in the county of Licking, in the State of Ohio, have invented certain new and useful Improvements in Bearings for Rollers for Roller-Skates; and I do hereby declare the following to beafull, clear, and exact description of my invention, which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in anti friction bearings for rollers for rollerskates, in which the skate-axle is made to bear upon a series of metal rollers, each turned away in the center, forming a bearing upon the end thereof, the metal rollers being inclosed within a metal sleeve or thimble open at each end, the ends of the metal sleeve or thimble being closed by a circular sheet-metal cap attached to each side of the skate-roller, the axle of the skate passing through the same, the rim of the caps being flanged outward in a semicircular form.

The objects of my invention are, first, to prevent the oil used in lubricating the axle of the skate from escaping upon the sides and surface of the skate-roller; second, to reduce the friction of the skate-roller upon the skateaxle to the least possible degree.

Figure 1 in the drawings is a side elevation of the skate-roller in position upon the skateaxle, with the cap attached to the outside of the skateroller. Fig. 2 is a cross-section of the skate-roller in a vertical line at A, showing the sleeve or thimble b, the metal roller 13 inserted therein, and the cap 6 upon each side of the skate-axle O, passing between the rollers B and through the metal cap 6. Fig. 3 is a longitudinal section at vertical line N of the skate-roller, showing the position of the metal rollers B upon the skate-axle O and within the metal sleeve or thimble b. Fig. 4. is an outside elevation of sleeve or thimble b. Fig. 5 is an elevation of skate-axle C and rollers B, showing also the form of the metal rollers 13. Fig. 6 is an end view of the sleeve or thimble b. Fig. 7 is a side elevation of cap 6. Fig 8 is a view of cap e in cross-section, showing the flange upon the rim thereof.

Each metal roller (indicated by B in the drawings) is constructed of a single piece of metal round in crosssections, the surface of each roller being turned away in the center; thus forming a bearing for the axle of the skate at each end of the metal roller, as indicated by B in Fig. 5, the extreme endsof each metal roller being rounded up, as shown by B,'Fig. 5, so as to present the. least possible surface to the cap 6. A series of metal rollers is inclosed or surrounded by the metal thimblevor sleeve [9, in the manner shown in Fig. 5 in the drawings. This sleeve or thimble may be constructed of a length equal to the thickness of the skate-roller, with the inner surface thereof smooth. The extreme length of the metal rollers B is about that of the sleeve or thimble I), being sufficiently short, so that the metal rollers B will not bind upon the metal cap 6, as is indicated in Fig. 2 in the drawings.

The metal rollers 13 surround the axle of the skate O and form the bearing therefor, and the said rollers also rest upon the inner sur face of the sleeve or thimble b, in the manner indicated in Fig. 2. The inner circumference of the sleeve or thimble b is of a size so that it will confine the metal rollers B: closely around the skate-axle, allowing but very little loose motion of the skate axle and rollers when the skate is raised from or put down upon the floor.

The metal rollers are prevented from lateral displacement by the circular sheet-metal cap 6, attached to each side of the skate-roller, the diameter of this metal cap being sufficiently large to cover the open ends ot'the metal sleeve or thimble b, and allow the cap to be fastened to the skate-roller by means of screws passing through the cap and into the skate-roller, as is shown by Fig. 2. The cap attached to the skate-roller is also shown in Fig. 1. The rim of the cap 6 is flanged outward from the skateroller in a semicircular form, as is indicated by 6, Fig. 8. The cap is fitted tightly to each side of the skate-roller, and having a circular opening in the center thereof of sufficient size to permit the skate axle to pass through the same, the opening in the cap being large enough to permit the introduction of oil upon the skate-axle.

The skate-roller has a round opening of sufficient size to receive the thimble or sleeve 12, which is also round and of equal thickness throughout, and make the same fit tightlytherein, said sleeve or thimble being so adjusted in the skate-roller as that the center of the sleeve or thimble opening shall be also the 5 center of the skate-roller throughout, so as to make the skate-roller run true upon its axle.

An anti-friction bearing for rollers for roller-skates has been constructed of small metal balls lying within metal chambersin the skateroller, the axle and skate-roller bearing upon the metal balls. In this ball-bearing device the weight is brought to bear upon the balls at more or less of an angle from the center of the skate-roller toward the sides thereof, while in I 5 my invention the weight is brought to bear upon the metal rollers B in a direct downward pressure.

In my invention the least possible surface is made to bear upon the axle of the skate and the ordinary manneri. 6., by a pin passing through an eye in the end thereof.

In my improvement the parts are much less numerous and are more easily adjusted in position in the skate'roller than in any other form of anti-friction bearing for rollers for roller-skates.

In the ordinary form of skaterollers the sur- 0 plus oil from the skate-axle runs down upon the sides of the skate-roller and spreads upon the face of the same, causing the face of the skate-roller to become slippery and greatly increases the danger of falling. One of the features of my invention is the circular sheetmetal cap 6, which is attached to each side of the skate-rollenthe rim of which cap is flanged outward from the skate-roller in a semicircle, forming a groove in the rim of the metal cap, in which the escaping oil is collected and prevented from spreading upon the sides and face of the skate-roller.

What I claim, and desire to secure by Letters Patent, is

1. In combination with a roller for rollerskates, an anti-friction bearing embodying the series of metal rollers, each rounded up at the extreme ends thereof, turned away in the center thereof, forming a hearing at each end surrounding the axle of the skate, the said axle bearing thereon, the metal rollers inclosed within a metal sleeve or thimble, and the sheet metal cap circular in form, the rim thereof flanged outward from the skate-roller in a semicircular form, attached closely to the sides of the skate-roller, covering the open ends of the metal sleeve or thimble and preventing the lateral displacement of the metal rollers, substantially as set forth.

2. In combination with a roller for rollerskates, a metal cap with the rim flanged outward from the skate-roller in a semicircular form, and attached closely to each side of the skate-roller by means of screws passing through the cap and into the skate-roller, substantially as set forth.

JOHN M. KELEHER. .Vitnesses:

JULIUs J. D. MONAMAR, EDsoN B. DENNIs. 

